发明申请
US20080100560A1 GATE DRIVING CIRCUIT, DISPLAY APPARATUS HAVING THE SAME, AND METHOD THEREOF
有权
门控驱动电路,具有该门电路的显示装置及其方法
- 专利标题: GATE DRIVING CIRCUIT, DISPLAY APPARATUS HAVING THE SAME, AND METHOD THEREOF
- 专利标题(中): 门控驱动电路,具有该门电路的显示装置及其方法
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申请号: US11928466申请日: 2007-10-30
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公开(公告)号: US20080100560A1公开(公告)日: 2008-05-01
- 发明人: Byoung-Sun NA , Dong-Hyeon KI , Min-Cheol LEE , Soon-Il AHN
- 申请人: Byoung-Sun NA , Dong-Hyeon KI , Min-Cheol LEE , Soon-Il AHN
- 申请人地址: KR Suwon-si
- 专利权人: SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人: SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人地址: KR Suwon-si
- 优先权: KR10-2006-0106665 20061031
- 主分类号: G09G3/36
- IPC分类号: G09G3/36
摘要:
In a gate driving circuit and a display apparatus having the gate driving circuit, a pull-up transistor of a present stage among plural stages, which are connected one after another to each other and sequentially output a gate signal, pulls up a present gate signal output through an output terminal to a gate-on voltage. A buffer transistor is connected to a control terminal of the pull-up transistor to receive a previous output signal from a previous stage and to turn on the pull-up transistor. The buffer transistor has a chargeability that is about two times or greater than the chargeability of the pull-up transistor. Thus, the size of the pull-up transistor may be reduced, thereby preventing a malfunction of the gate driving circuit when the gate driving circuit is operated under conditions of high temperature or low temperature.
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